Question 1152 Deck General

The correct answer is C) 154.16 long tons. To explain: 1) The centrifugal ballast pump has a capacity of 200 gpm, which means it can discharge 200 gallons per minute. 2) In one hour (60 minutes), the pump will discharge 200 gpm x 60 minutes = 12,000 gallons. 3) Since 1 long ton of seawater is equivalent to 224 gallons, the 200 long tons of seawater in the tank will be reduced to 12,000 gallons / 224 gallons per long ton = 45.84 long tons remaining in the tank after one hour of discharge. 4) The other answer choices are incorrect because they do not accurately calculate the amount of water remaining in the tank after one hour of discharge at 200 gpm.